Role of the human rostral supplementary motor area and the basal ganglia in motor sequence control: Investigations with H-2 O-15 PET (vol 79, pg 1070, 1998)

A technique for connecting a plurality of telephone channels operated on a pulse code modulated basis, in a conference arrangement. Digital signals are not converted to analog, rather binary words are compared from the participating channels, with the largest binary number selected as the speaker.